hid-input.c 25.7 KB
Newer Older
1 2
/*
 *  Copyright (c) 2000-2001 Vojtech Pavlik
3
 *  Copyright (c) 2006-2007 Jiri Kosina
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
 *
 *  HID to Linux Input mapping
 */

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * Should you need to contact me, the author, you can do so either by
 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
 */

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/kernel.h>

#include <linux/hid.h>
33
#include <linux/hid-debug.h>
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

#define unk	KEY_UNKNOWN

static const unsigned char hid_keyboard[256] = {
	  0,  0,  0,  0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
	 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44,  2,  3,
	  4,  5,  6,  7,  8,  9, 10, 11, 28,  1, 14, 15, 57, 12, 13, 26,
	 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
	 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
	105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
	 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
	191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
	115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
	122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
	unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
49
	unk,unk,unk,unk,unk,unk,179,180,unk,unk,unk,unk,unk,unk,unk,unk,
50 51 52 53 54 55 56 57 58 59 60
	unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
	unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
	 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
	150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
};

static const struct {
	__s32 x;
	__s32 y;
}  hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};

61 62 63 64
#define map_abs(c)	hid_map_usage(hidinput, usage, &bit, &max, EV_ABS, (c))
#define map_rel(c)	hid_map_usage(hidinput, usage, &bit, &max, EV_REL, (c))
#define map_key(c)	hid_map_usage(hidinput, usage, &bit, &max, EV_KEY, (c))
#define map_led(c)	hid_map_usage(hidinput, usage, &bit, &max, EV_LED, (c))
65

66 67 68 69
#define map_abs_clear(c)	hid_map_usage_clear(hidinput, usage, &bit, \
		&max, EV_ABS, (c))
#define map_key_clear(c)	hid_map_usage_clear(hidinput, usage, &bit, \
		&max, EV_KEY, (c))
70

71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110
static inline int match_scancode(int code, int scancode)
{
	if (scancode == 0)
		return 1;
	return ((code & (HID_USAGE_PAGE | HID_USAGE)) == scancode);
}

static inline int match_keycode(int code, int keycode)
{
	if (keycode == 0)
		return 1;
	return (code == keycode);
}

static struct hid_usage *hidinput_find_key(struct hid_device *hid,
		int scancode, int keycode)
{
	int i, j, k;
	struct hid_report *report;
	struct hid_usage *usage;

	for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
		list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
			for (i = 0; i < report->maxfield; i++) {
				for ( j = 0; j < report->field[i]->maxusage; j++) {
					usage = report->field[i]->usage + j;
					if (usage->type == EV_KEY &&
						match_scancode(usage->hid, scancode) &&
						match_keycode(usage->code, keycode))
						return usage;
				}
			}
		}
	}
	return NULL;
}

static int hidinput_getkeycode(struct input_dev *dev, int scancode,
				int *keycode)
{
111
	struct hid_device *hid = input_get_drvdata(dev);
112
	struct hid_usage *usage;
J
Jiri Kosina 已提交
113

114 115 116 117 118 119 120 121 122 123 124
	usage = hidinput_find_key(hid, scancode, 0);
	if (usage) {
		*keycode = usage->code;
		return 0;
	}
	return -EINVAL;
}

static int hidinput_setkeycode(struct input_dev *dev, int scancode,
				int keycode)
{
125
	struct hid_device *hid = input_get_drvdata(dev);
126 127
	struct hid_usage *usage;
	int old_keycode;
J
Jiri Kosina 已提交
128

129 130
	if (keycode < 0 || keycode > KEY_MAX)
		return -EINVAL;
J
Jiri Kosina 已提交
131

132 133 134 135
	usage = hidinput_find_key(hid, scancode, 0);
	if (usage) {
		old_keycode = usage->code;
		usage->code = keycode;
J
Jiri Kosina 已提交
136

137 138
		clear_bit(old_keycode, dev->keybit);
		set_bit(usage->code, dev->keybit);
139
		dbg_hid(KERN_DEBUG "Assigned keycode %d to HID usage code %x\n", keycode, scancode);
140 141 142 143
		/* Set the keybit for the old keycode if the old keycode is used
		 * by another key */
		if (hidinput_find_key (hid, 0, old_keycode))
			set_bit(old_keycode, dev->keybit);
J
Jiri Kosina 已提交
144

145 146
		return 0;
	}
J
Jiri Kosina 已提交
147

148 149 150 151
	return -EINVAL;
}


152 153 154 155
static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
				     struct hid_usage *usage)
{
	struct input_dev *input = hidinput->input;
156
	struct hid_device *device = input_get_drvdata(input);
157
	int max = 0, code, ret;
158 159 160 161
	unsigned long *bit = NULL;

	field->hidinput = hidinput;

162
	dbg_hid("Mapping: ");
163
	hid_resolv_usage(usage->hid);
164
	dbg_hid_line(" ---> ");
165 166 167 168

	if (field->flags & HID_MAIN_ITEM_CONSTANT)
		goto ignore;

169 170 171 172 173 174 175
	/* only LED usages are supported in output fields */
	if (field->report_type == HID_OUTPUT_REPORT &&
			(usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
		dbg_hid_line(" [non-LED output field] ");
		goto ignore;
	}

176
	/* handle input mappings for quirky devices */
177
	ret = hidinput_mapping_quirks(usage, hidinput, &bit, &max);
178 179 180
	if (ret)
		goto mapped;

J
Jiri Slaby 已提交
181 182 183 184 185 186 187 188 189
	if (device->driver->input_mapping) {
		int ret = device->driver->input_mapping(device, hidinput, field,
				usage, &bit, &max);
		if (ret > 0)
			goto mapped;
		if (ret < 0)
			goto ignore;
	}

190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225
	switch (usage->hid & HID_USAGE_PAGE) {

		case HID_UP_UNDEFINED:
			goto ignore;

		case HID_UP_KEYBOARD:

			set_bit(EV_REP, input->evbit);

			if ((usage->hid & HID_USAGE) < 256) {
				if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
				map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
			} else
				map_key(KEY_UNKNOWN);

			break;

		case HID_UP_BUTTON:

			code = ((usage->hid - 1) & 0xf);

			switch (field->application) {
				case HID_GD_MOUSE:
				case HID_GD_POINTER:  code += 0x110; break;
				case HID_GD_JOYSTICK: code += 0x120; break;
				case HID_GD_GAMEPAD:  code += 0x130; break;
				default:
					switch (field->physical) {
						case HID_GD_MOUSE:
						case HID_GD_POINTER:  code += 0x110; break;
						case HID_GD_JOYSTICK: code += 0x120; break;
						case HID_GD_GAMEPAD:  code += 0x130; break;
						default:              code += 0x100;
					}
			}

226
			map_key(code);
227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276
			break;


		case HID_UP_SIMULATION:

			switch (usage->hid & 0xffff) {
				case 0xba: map_abs(ABS_RUDDER);   break;
				case 0xbb: map_abs(ABS_THROTTLE); break;
				case 0xc4: map_abs(ABS_GAS);      break;
				case 0xc5: map_abs(ABS_BRAKE);    break;
				case 0xc8: map_abs(ABS_WHEEL);    break;
				default:   goto ignore;
			}
			break;

		case HID_UP_GENDESK:

			if ((usage->hid & 0xf0) == 0x80) {	/* SystemControl */
				switch (usage->hid & 0xf) {
					case 0x1: map_key_clear(KEY_POWER);  break;
					case 0x2: map_key_clear(KEY_SLEEP);  break;
					case 0x3: map_key_clear(KEY_WAKEUP); break;
					default: goto unknown;
				}
				break;
			}

			if ((usage->hid & 0xf0) == 0x90) {	/* D-pad */
				switch (usage->hid) {
					case HID_GD_UP:	   usage->hat_dir = 1; break;
					case HID_GD_DOWN:  usage->hat_dir = 5; break;
					case HID_GD_RIGHT: usage->hat_dir = 3; break;
					case HID_GD_LEFT:  usage->hat_dir = 7; break;
					default: goto unknown;
				}
				if (field->dpad) {
					map_abs(field->dpad);
					goto ignore;
				}
				map_abs(ABS_HAT0X);
				break;
			}

			switch (usage->hid) {

				/* These usage IDs map directly to the usage codes. */
				case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
				case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
				case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
					if (field->flags & HID_MAIN_ITEM_RELATIVE)
277
						map_rel(usage->hid & 0xf);
278
					else
279
						map_abs(usage->hid & 0xf);
280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296
					break;

				case HID_GD_HATSWITCH:
					usage->hat_min = field->logical_minimum;
					usage->hat_max = field->logical_maximum;
					map_abs(ABS_HAT0X);
					break;

				case HID_GD_START:	map_key_clear(BTN_START);	break;
				case HID_GD_SELECT:	map_key_clear(BTN_SELECT);	break;

				default: goto unknown;
			}

			break;

		case HID_UP_LED:
297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312

			switch (usage->hid & 0xffff) {                        /* HID-Value:                   */
				case 0x01:  map_led (LED_NUML);     break;    /*   "Num Lock"                 */
				case 0x02:  map_led (LED_CAPSL);    break;    /*   "Caps Lock"                */
				case 0x03:  map_led (LED_SCROLLL);  break;    /*   "Scroll Lock"              */
				case 0x04:  map_led (LED_COMPOSE);  break;    /*   "Compose"                  */
				case 0x05:  map_led (LED_KANA);     break;    /*   "Kana"                     */
				case 0x27:  map_led (LED_SLEEP);    break;    /*   "Stand-By"                 */
				case 0x4c:  map_led (LED_SUSPEND);  break;    /*   "System Suspend"           */
				case 0x09:  map_led (LED_MUTE);     break;    /*   "Mute"                     */
				case 0x4b:  map_led (LED_MISC);     break;    /*   "Generic Indicator"        */
				case 0x19:  map_led (LED_MAIL);     break;    /*   "Message Waiting"          */
				case 0x4d:  map_led (LED_CHARGING); break;    /*   "External Power Connected" */

				default: goto ignore;
			}
313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361
			break;

		case HID_UP_DIGITIZER:

			switch (usage->hid & 0xff) {

				case 0x30: /* TipPressure */
					if (!test_bit(BTN_TOUCH, input->keybit)) {
						device->quirks |= HID_QUIRK_NOTOUCH;
						set_bit(EV_KEY, input->evbit);
						set_bit(BTN_TOUCH, input->keybit);
					}

					map_abs_clear(ABS_PRESSURE);
					break;

				case 0x32: /* InRange */
					switch (field->physical & 0xff) {
						case 0x21: map_key(BTN_TOOL_MOUSE); break;
						case 0x22: map_key(BTN_TOOL_FINGER); break;
						default: map_key(BTN_TOOL_PEN); break;
					}
					break;

				case 0x3c: /* Invert */
					map_key_clear(BTN_TOOL_RUBBER);
					break;

				case 0x33: /* Touch */
				case 0x42: /* TipSwitch */
				case 0x43: /* TipSwitch2 */
					device->quirks &= ~HID_QUIRK_NOTOUCH;
					map_key_clear(BTN_TOUCH);
					break;

				case 0x44: /* BarrelSwitch */
					map_key_clear(BTN_STYLUS);
					break;

				default:  goto unknown;
			}
			break;

		case HID_UP_CONSUMER:	/* USB HUT v1.1, pages 56-62 */

			switch (usage->hid & HID_USAGE) {
				case 0x000: goto ignore;
				case 0x034: map_key_clear(KEY_SLEEP);		break;
				case 0x036: map_key_clear(BTN_MISC);		break;
362

363
				case 0x040: map_key_clear(KEY_MENU);		break;
364
				case 0x045: map_key_clear(KEY_RADIO);		break;
365

366
				case 0x083: map_key_clear(KEY_LAST);		break;
367 368
				case 0x088: map_key_clear(KEY_PC);		break;
				case 0x089: map_key_clear(KEY_TV);		break;
369
				case 0x08a: map_key_clear(KEY_WWW);		break;
370 371
				case 0x08b: map_key_clear(KEY_DVD);		break;
				case 0x08c: map_key_clear(KEY_PHONE);		break;
372
				case 0x08d: map_key_clear(KEY_PROGRAM);		break;
373 374 375 376 377 378 379
				case 0x08e: map_key_clear(KEY_VIDEOPHONE);	break;
				case 0x08f: map_key_clear(KEY_GAMES);		break;
				case 0x090: map_key_clear(KEY_MEMO);		break;
				case 0x091: map_key_clear(KEY_CD);		break;
				case 0x092: map_key_clear(KEY_VCR);		break;
				case 0x093: map_key_clear(KEY_TUNER);		break;
				case 0x094: map_key_clear(KEY_EXIT);		break;
380
				case 0x095: map_key_clear(KEY_HELP);		break;
381 382 383
				case 0x096: map_key_clear(KEY_TAPE);		break;
				case 0x097: map_key_clear(KEY_TV2);		break;
				case 0x098: map_key_clear(KEY_SAT);		break;
384
				case 0x09a: map_key_clear(KEY_PVR);		break;
385

386 387
				case 0x09c: map_key_clear(KEY_CHANNELUP);	break;
				case 0x09d: map_key_clear(KEY_CHANNELDOWN);	break;
388 389
				case 0x0a0: map_key_clear(KEY_VCR2);		break;

390 391 392 393 394 395 396 397 398
				case 0x0b0: map_key_clear(KEY_PLAY);		break;
				case 0x0b1: map_key_clear(KEY_PAUSE);		break;
				case 0x0b2: map_key_clear(KEY_RECORD);		break;
				case 0x0b3: map_key_clear(KEY_FASTFORWARD);	break;
				case 0x0b4: map_key_clear(KEY_REWIND);		break;
				case 0x0b5: map_key_clear(KEY_NEXTSONG);	break;
				case 0x0b6: map_key_clear(KEY_PREVIOUSSONG);	break;
				case 0x0b7: map_key_clear(KEY_STOPCD);		break;
				case 0x0b8: map_key_clear(KEY_EJECTCD);		break;
399
				case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT);	break;
400

401 402 403 404 405 406
				case 0x0cd: map_key_clear(KEY_PLAYPAUSE);	break;
			        case 0x0e0: map_abs_clear(ABS_VOLUME);		break;
				case 0x0e2: map_key_clear(KEY_MUTE);		break;
				case 0x0e5: map_key_clear(KEY_BASSBOOST);	break;
				case 0x0e9: map_key_clear(KEY_VOLUMEUP);	break;
				case 0x0ea: map_key_clear(KEY_VOLUMEDOWN);	break;
407

408
				case 0x182: map_key_clear(KEY_BOOKMARKS);	break;
409
				case 0x183: map_key_clear(KEY_CONFIG);		break;
410 411 412 413 414 415
				case 0x184: map_key_clear(KEY_WORDPROCESSOR);	break;
				case 0x185: map_key_clear(KEY_EDITOR);		break;
				case 0x186: map_key_clear(KEY_SPREADSHEET);	break;
				case 0x187: map_key_clear(KEY_GRAPHICSEDITOR);	break;
				case 0x188: map_key_clear(KEY_PRESENTATION);	break;
				case 0x189: map_key_clear(KEY_DATABASE);	break;
416
				case 0x18a: map_key_clear(KEY_MAIL);		break;
417 418 419 420 421
				case 0x18b: map_key_clear(KEY_NEWS);		break;
				case 0x18c: map_key_clear(KEY_VOICEMAIL);	break;
				case 0x18d: map_key_clear(KEY_ADDRESSBOOK);	break;
				case 0x18e: map_key_clear(KEY_CALENDAR);	break;
				case 0x191: map_key_clear(KEY_FINANCE);		break;
422 423
				case 0x192: map_key_clear(KEY_CALC);		break;
				case 0x194: map_key_clear(KEY_FILE);		break;
424
				case 0x196: map_key_clear(KEY_WWW);		break;
425
				case 0x19c: map_key_clear(KEY_LOGOFF);		break;
426 427
				case 0x19e: map_key_clear(KEY_COFFEE);		break;
				case 0x1a6: map_key_clear(KEY_HELP);		break;
428
				case 0x1a7: map_key_clear(KEY_DOCUMENTS);	break;
429
				case 0x1ab: map_key_clear(KEY_SPELLCHECK);	break;
430 431
				case 0x1b6: map_key_clear(KEY_MEDIA);		break;
				case 0x1b7: map_key_clear(KEY_SOUND);		break;
432 433
				case 0x1bc: map_key_clear(KEY_MESSENGER);	break;
				case 0x1bd: map_key_clear(KEY_INFO);		break;
434
				case 0x201: map_key_clear(KEY_NEW);		break;
435 436 437
				case 0x202: map_key_clear(KEY_OPEN);		break;
				case 0x203: map_key_clear(KEY_CLOSE);		break;
				case 0x204: map_key_clear(KEY_EXIT);		break;
438 439 440 441 442 443 444
				case 0x207: map_key_clear(KEY_SAVE);		break;
				case 0x208: map_key_clear(KEY_PRINT);		break;
				case 0x209: map_key_clear(KEY_PROPS);		break;
				case 0x21a: map_key_clear(KEY_UNDO);		break;
				case 0x21b: map_key_clear(KEY_COPY);		break;
				case 0x21c: map_key_clear(KEY_CUT);		break;
				case 0x21d: map_key_clear(KEY_PASTE);		break;
445 446 447
				case 0x21f: map_key_clear(KEY_FIND);		break;
				case 0x221: map_key_clear(KEY_SEARCH);		break;
				case 0x222: map_key_clear(KEY_GOTO);		break;
448 449 450 451 452 453
				case 0x223: map_key_clear(KEY_HOMEPAGE);	break;
				case 0x224: map_key_clear(KEY_BACK);		break;
				case 0x225: map_key_clear(KEY_FORWARD);		break;
				case 0x226: map_key_clear(KEY_STOP);		break;
				case 0x227: map_key_clear(KEY_REFRESH);		break;
				case 0x22a: map_key_clear(KEY_BOOKMARKS);	break;
454 455 456
				case 0x22d: map_key_clear(KEY_ZOOMIN);		break;
				case 0x22e: map_key_clear(KEY_ZOOMOUT);		break;
				case 0x22f: map_key_clear(KEY_ZOOMRESET);	break;
457 458
				case 0x233: map_key_clear(KEY_SCROLLUP);	break;
				case 0x234: map_key_clear(KEY_SCROLLDOWN);	break;
459
				case 0x238: map_rel(REL_HWHEEL);		break;
460
				case 0x25f: map_key_clear(KEY_CANCEL);		break;
461
				case 0x279: map_key_clear(KEY_REDO);		break;
462

463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491
				case 0x289: map_key_clear(KEY_REPLY);		break;
				case 0x28b: map_key_clear(KEY_FORWARDMAIL);	break;
				case 0x28c: map_key_clear(KEY_SEND);		break;

				default:    goto ignore;
			}
			break;

		case HID_UP_HPVENDOR:	/* Reported on a Dutch layout HP5308 */

			set_bit(EV_REP, input->evbit);
			switch (usage->hid & HID_USAGE) {
			        case 0x021: map_key_clear(KEY_PRINT);           break;
				case 0x070: map_key_clear(KEY_HP);		break;
				case 0x071: map_key_clear(KEY_CAMERA);		break;
				case 0x072: map_key_clear(KEY_SOUND);		break;
				case 0x073: map_key_clear(KEY_QUESTION);	break;
				case 0x080: map_key_clear(KEY_EMAIL);		break;
				case 0x081: map_key_clear(KEY_CHAT);		break;
				case 0x082: map_key_clear(KEY_SEARCH);		break;
				case 0x083: map_key_clear(KEY_CONNECT);	        break;
				case 0x084: map_key_clear(KEY_FINANCE);		break;
				case 0x085: map_key_clear(KEY_SPORT);		break;
				case 0x086: map_key_clear(KEY_SHOP);	        break;
				default:    goto ignore;
			}
			break;

		case HID_UP_MSVENDOR:
492

493
			goto ignore;
494

495
		case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
496 497

			set_bit(EV_REP, input->evbit);
J
Jiri Slaby 已提交
498
			goto ignore;
499

500
		case HID_UP_LOGIVENDOR:
501

502 503
			goto ignore;
		
504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529
		case HID_UP_PID:

			switch(usage->hid & HID_USAGE) {
				case 0xa4: map_key_clear(BTN_DEAD);	break;
				default: goto ignore;
			}
			break;

		default:
		unknown:
			if (field->report_size == 1) {
				if (field->report->type == HID_OUTPUT_REPORT) {
					map_led(LED_MISC);
					break;
				}
				map_key(BTN_MISC);
				break;
			}
			if (field->flags & HID_MAIN_ITEM_RELATIVE) {
				map_rel(REL_MISC);
				break;
			}
			map_abs(ABS_MISC);
			break;
	}

530
mapped:
J
Jiri Slaby 已提交
531 532 533 534
	if (device->driver->input_mapped && device->driver->input_mapped(device,
				hidinput, field, usage, &bit, &max) < 0)
		goto ignore;

535 536 537 538
	if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5 |
			HID_QUIRK_2WHEEL_MOUSE_HACK_B8)) && (usage->type == EV_REL) &&
			(usage->code == REL_WHEEL))
		set_bit(REL_HWHEEL, bit);
539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579

	if (((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
		|| ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007)))
		goto ignore;

	set_bit(usage->type, input->evbit);

	while (usage->code <= max && test_and_set_bit(usage->code, bit))
		usage->code = find_next_zero_bit(bit, max + 1, usage->code);

	if (usage->code > max)
		goto ignore;


	if (usage->type == EV_ABS) {

		int a = field->logical_minimum;
		int b = field->logical_maximum;

		if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
			a = field->logical_minimum = 0;
			b = field->logical_maximum = 255;
		}

		if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
			input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
		else	input_set_abs_params(input, usage->code, a, b, 0, 0);

	}

	if (usage->type == EV_ABS &&
	    (usage->hat_min < usage->hat_max || usage->hat_dir)) {
		int i;
		for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
			input_set_abs_params(input, i, -1, 1, 0, 0);
			set_bit(i, input->absbit);
		}
		if (usage->hat_dir && !field->dpad)
			field->dpad = usage->code;
	}

580 581 582 583 584 585 586 587 588 589
	/* for those devices which produce Consumer volume usage as relative,
	 * we emulate pressing volumeup/volumedown appropriate number of times
	 * in hidinput_hid_event()
	 */
	if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
			(usage->code == ABS_VOLUME)) {
		set_bit(KEY_VOLUMEUP, input->keybit);
		set_bit(KEY_VOLUMEDOWN, input->keybit);
	}

590 591 592 593 594
	if (usage->type == EV_KEY) {
		set_bit(EV_MSC, input->evbit);
		set_bit(MSC_SCAN, input->mscbit);
	}

595
	hid_resolv_event(usage->type, usage->code);
596 597 598

	dbg_hid_line("\n");

599 600 601
	return;

ignore:
602
	dbg_hid_line("IGNORED\n");
603 604 605 606 607 608
	return;
}

void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
{
	struct input_dev *input;
A
Al Viro 已提交
609
	unsigned *quirks = &hid->quirks;
610 611 612 613 614 615 616 617 618

	if (!field->hidinput)
		return;

	input = field->hidinput->input;

	if (!usage->type)
		return;

619
	/* handle input events for quirky devices */
620 621
	if (hidinput_event_quirks(hid, field, usage, value))
		return;
622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654

	if (usage->hat_min < usage->hat_max || usage->hat_dir) {
		int hat_dir = usage->hat_dir;
		if (!hat_dir)
			hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
		if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
		input_event(input, usage->type, usage->code    , hid_hat_to_axis[hat_dir].x);
                input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
                return;
        }

	if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
		*quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
		return;
	}

	if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
		if (value) {
			input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
			return;
		}
		input_event(input, usage->type, usage->code, 0);
		input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
		return;
	}

	if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
		int a = field->logical_minimum;
		int b = field->logical_maximum;
		input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
	}

	if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
655
		dbg_hid("Maximum Effects - %d\n",value);
656 657 658 659
		return;
	}

	if (usage->hid == (HID_UP_PID | 0x7fUL)) {
660
		dbg_hid("PID Pool Report\n");
661 662 663 664 665 666
		return;
	}

	if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
		return;

667 668 669 670 671 672 673 674 675 676 677 678 679 680 681
	if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
			(usage->code == ABS_VOLUME)) {
		int count = abs(value);
		int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
		int i;

		for (i = 0; i < count; i++) {
			input_event(input, EV_KEY, direction, 1);
			input_sync(input);
			input_event(input, EV_KEY, direction, 0);
			input_sync(input);
		}
		return;
	}

682 683 684
	/* report the usage code as scancode if the key status has changed */
	if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value)
		input_event(input, EV_MSC, MSC_SCAN, usage->hid);
685

686 687 688 689 690 691 692 693 694 695 696 697 698
	input_event(input, usage->type, usage->code, value);

	if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
		input_event(input, usage->type, usage->code, 0);
}

void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
{
	struct hid_input *hidinput;

	list_for_each_entry(hidinput, &hid->inputs, list)
		input_sync(hidinput->input);
}
J
Jiri Kosina 已提交
699
EXPORT_SYMBOL_GPL(hidinput_report_event);
700

J
Jiri Kosina 已提交
701
int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
702 703 704 705 706 707 708 709 710 711 712 713 714 715
{
	struct hid_report *report;
	int i, j;

	list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
		for (i = 0; i < report->maxfield; i++) {
			*field = report->field[i];
			for (j = 0; j < (*field)->maxusage; j++)
				if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
					return j;
		}
	}
	return -1;
}
J
Jiri Kosina 已提交
716
EXPORT_SYMBOL_GPL(hidinput_find_field);
717

718 719
static int hidinput_open(struct input_dev *dev)
{
720 721
	struct hid_device *hid = input_get_drvdata(dev);

J
Jiri Slaby 已提交
722
	return hid->ll_driver->open(hid);
723 724 725 726
}

static void hidinput_close(struct input_dev *dev)
{
727 728
	struct hid_device *hid = input_get_drvdata(dev);

J
Jiri Slaby 已提交
729
	hid->ll_driver->close(hid);
730 731
}

732 733 734 735 736 737 738 739 740 741 742 743
/*
 * Register the input device; print a message.
 * Configure the input layer interface
 * Read all reports and initialize the absolute field values.
 */

int hidinput_connect(struct hid_device *hid)
{
	struct hid_report *report;
	struct hid_input *hidinput = NULL;
	struct input_dev *input_dev;
	int i, j, k;
744
	int max_report_type = HID_OUTPUT_REPORT;
745

746 747 748
	if (hid->quirks & HID_QUIRK_IGNORE_HIDINPUT)
		return -1;

749 750 751 752 753 754 755 756
	INIT_LIST_HEAD(&hid->inputs);

	for (i = 0; i < hid->maxcollection; i++)
		if (hid->collection[i].type == HID_COLLECTION_APPLICATION ||
		    hid->collection[i].type == HID_COLLECTION_PHYSICAL)
			if (IS_INPUT_APPLICATION(hid->collection[i].usage))
				break;

757
	if (i == hid->maxcollection && (hid->quirks & HID_QUIRK_HIDINPUT) == 0)
758 759
		return -1;

760 761 762 763
	if (hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
		max_report_type = HID_INPUT_REPORT;

	for (k = HID_INPUT_REPORT; k <= max_report_type; k++)
764 765 766 767 768 769 770 771 772 773 774
		list_for_each_entry(report, &hid->report_enum[k].report_list, list) {

			if (!report->maxfield)
				continue;

			if (!hidinput) {
				hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
				input_dev = input_allocate_device();
				if (!hidinput || !input_dev) {
					kfree(hidinput);
					input_free_device(input_dev);
775
					err_hid("Out of memory during hid input probe");
776
					goto out_unwind;
777 778
				}

779
				input_set_drvdata(input_dev, hid);
J
Jiri Slaby 已提交
780 781
				input_dev->event =
					hid->ll_driver->hidinput_input_event;
782 783
				input_dev->open = hidinput_open;
				input_dev->close = hidinput_close;
784 785
				input_dev->setkeycode = hidinput_setkeycode;
				input_dev->getkeycode = hidinput_getkeycode;
786 787 788 789

				input_dev->name = hid->name;
				input_dev->phys = hid->phys;
				input_dev->uniq = hid->uniq;
J
Jiri Kosina 已提交
790 791 792 793
				input_dev->id.bustype = hid->bus;
				input_dev->id.vendor  = hid->vendor;
				input_dev->id.product = hid->product;
				input_dev->id.version = hid->version;
J
Jiri Slaby 已提交
794
				input_dev->dev.parent = hid->dev.parent;
795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810
				hidinput->input = input_dev;
				list_add_tail(&hidinput->list, &hid->inputs);
			}

			for (i = 0; i < report->maxfield; i++)
				for (j = 0; j < report->field[i]->maxusage; j++)
					hidinput_configure_usage(hidinput, report->field[i],
								 report->field[i]->usage + j);

			if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
				/* This will leave hidinput NULL, so that it
				 * allocates another one if we have more inputs on
				 * the same interface. Some devices (e.g. Happ's
				 * UGCI) cram a lot of unrelated inputs into the
				 * same interface. */
				hidinput->report = report;
811 812
				if (input_register_device(hidinput->input))
					goto out_cleanup;
813 814 815 816
				hidinput = NULL;
			}
		}

817 818
	if (hidinput && input_register_device(hidinput->input))
		goto out_cleanup;
819 820

	return 0;
821 822 823 824 825 826 827 828 829

out_cleanup:
	input_free_device(hidinput->input);
	kfree(hidinput);
out_unwind:
	/* unwind the ones we already registered */
	hidinput_disconnect(hid);

	return -1;
830
}
J
Jiri Kosina 已提交
831
EXPORT_SYMBOL_GPL(hidinput_connect);
832 833 834 835 836 837 838 839 840 841 842

void hidinput_disconnect(struct hid_device *hid)
{
	struct hid_input *hidinput, *next;

	list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
		list_del(&hidinput->list);
		input_unregister_device(hidinput->input);
		kfree(hidinput);
	}
}
J
Jiri Kosina 已提交
843 844
EXPORT_SYMBOL_GPL(hidinput_disconnect);